Prospects prepare for the NBA draft combine as high school students prepare for the SAT exam. They spend extra time working with coaches and studying different techniques to help them ace their biggest test — the combine — and hasten their development to make an immediate impact at the professional level.

In the pre-draft process, an amazing workout or a strong performance at the combine can elevate a prospect higher than his projected range. On the other hand, an underwhelming individual or group workout and poor combine test results can send a prospect’s stock free-falling.

Boston Celtics playoff hero Terry Rozier blew away management during a workout before the 2015 draft, which helped him ultimately go No. 16 overall. Rozier trained with Nick Friedman and Cody Toppert, currently the assistant coach and head coach of the Northern Arizona Suns in the G League, during the pre-draft process that year.